EP 0187121 B1 19880713 - HEAT-CURABLE EPOXY RESIN COMPOSITIONS
Title (en)
HEAT-CURABLE EPOXY RESIN COMPOSITIONS
Publication
Application
Priority
GB 8432606 A 19841222
Abstract (en)
[origin: US4645818A] Heat-curable compositions are described, comprising (a) an epoxide resin and (b) an effective amount of a urea of formula Ar-NHCON(R3)R4 where Ar represents an aromatic group linked through an aromatic carbon atom to the indicated nitrogen atom and which is substituted by an amido group, and R3 and R4 each represent an aliphatic, cycloaliphatic, or araliphatic hydrocarbyl group, optionally substituted by a halogen atom or a hydroxyl group, or R3 may further represent a hydrogen atom, or R3 nd R4, together with the indicated nitrogen atom, may represent a heterocyclic ring of 3 to 5 carbon atoms which may also have one oxygen atom in the ring. Such amidoarylureas may be used alone with the epoxide resin, or in combination with an accelerator for the heat-curing reaction, selected from dicyandiamide, carboxylic acid hydrazides, succinimide, cyanoacetamide, 1-cyano-3-(lower alkyl)guanidines, imidazoles, and carboxylic acid-tertiary amine salts.
IPC 1-7
IPC 8 full level
C08G 59/00 (2006.01); C08G 59/40 (2006.01); C08G 59/44 (2006.01)
CPC (source: EP US)
C08G 59/4014 (2013.01 - EP US); C08G 59/4021 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0187121 A1 19860709; EP 0187121 B1 19880713; AT E35685 T1 19880715; CA 1238746 A 19880628; DE 3563749 D1 19880818; GB 8432606 D0 19850206; JP S61155420 A 19860715; US 4645818 A 19870224
DOCDB simple family (application)
EP 85810604 A 19851216; AT 85810604 T 19851216; CA 498240 A 19851220; DE 3563749 T 19851216; GB 8432606 A 19841222; JP 29029485 A 19851223; US 80756485 A 19851211